NumberResearch Membership · Data 09/25/2026

Recent thousands-block assignments

68 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/25/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days
T-MOBILE USA, INC. 68
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2018-12-20 972-703-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 TERRELL TX
2018-12-20 972-703-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TERRELL TX
2018-12-18 217-920-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DANVILLE IL
2018-12-18 217-920-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DANVILLE IL
2018-12-17 562-399-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DOWNEY CA
2018-12-17 909-507-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2018-12-17 909-516-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHINO CA
2018-12-17 925-282-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LAFAYETTE CA
2018-12-17 971-332-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2018-12-13 217-806-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DANVILLE IL
2018-12-13 262-813-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PALMYRA WI
2018-12-13 262-813-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PALMYRA WI
2018-12-13 480-569-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2018-12-13 480-569-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2018-12-13 480-569-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2018-12-13 480-569-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2018-12-13 808-940-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2018-12-13 808-940-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2018-12-10 304-587-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLAY WV
2018-12-10 681-200-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PRKRSBGZN2 WV
2018-12-07 304-310-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHAPMANVL WV
2018-12-07 360-706-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2018-12-07 619-856-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NATIONALCY CA
2018-12-07 657-319-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FULLERTON CA
2018-12-07 951-450-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2018-12-06 469-588-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 FRISCO TX
2018-12-06 469-588-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 FRISCO TX
2018-12-06 469-588-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 FRISCO TX
2018-12-06 775-437-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 RENO NV
2018-12-05 208-948-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TWIN FALLS ID
2018-12-05 628-264-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2018-12-04 214-892-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2018-12-04 214-892-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2018-12-04 214-892-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2018-12-04 214-892-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2018-12-04 385-286-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PROVO UT
2018-12-04 424-406-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CMTN CMTN CA
2018-12-04 469-370-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2018-12-04 657-282-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ORANGE CA
2018-12-04 818-747-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2018-12-03 206-513-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2018-12-03 206-513-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2018-12-03 206-513-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2018-12-03 206-833-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2018-12-03 213-370-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LSAN DA 01 CA
2018-12-03 213-370-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LSAN DA 01 CA
2018-12-03 213-370-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LSAN DA 01 CA
2018-12-03 213-370-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LSAN DA 01 CA
2018-12-03 415-815-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2018-12-03 415-815-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNFC CNTRL CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.